ASUS RT-AC68U 21.2 to 22.3 upgrade fail. DSA?

[psherman]

@tjkolev

I can't even ping the RT-AC68U (192.168.111.1), when connected on the C7

I don't see any reason that should be the case.... especially because:

@tjkolev

I still can reach the C7 when connected to the AC68U.

Can you provide details about how you are running this test?

@tjkolev

I am very thankful you are helping me real time. But I feel I am starting to abuse your time. It's Sunday evening.

It's fine... call this a hobby, or an obsession ... I'm happy to help.

@tjkolev

I'll happily try any ideas you might have

We should double check the physical port assignments on the C7 -- I'm beginning to think that they are not what you think they are (the logical-to-physical mappings may have changed since earlier versions of OpenWrt).

Try connecting your uplink trunk to C7 port 2 and then check the other 3 ports with a computer. If that doesn't work, move it to port 3 and so on.

Alternatively, we could make the wan the uplink port because we know for fact that it is logical port 1.

@tjkolev

I can downgrade it to v19 (no DSA), see if it works, and then check at what version it breaks.

Your C7 is not using DSA anyway, so this is not necessary. You should stick with the latest and we'll figure this out.

[tjkolev]

I tried trunking on the WAN (1) port and one of the other LAN ports. No improvement. I have no reason to suspect the logical port numbering is incorrect.

So here's the upgrade history of the two routers. There was at least a month, if not more, between each upgrade. This was all done since the start of the year:

| C7 | AC68U | Issues  |
------------------------
| 21 | 21    | None    |
| 22 | 21    | None    |
| 23 | 21    | None    |
| 23 | 23    | VLANs   |

I can't help but think that the problem is with the AC68U. I am getting two routers. I'll put them in the role of the AC68U, and test how they do with the C7.

tjk

[psherman]

Let's review the network config files for both devices.

[tjkolev]

I wanted to let you enjoy the holidays, but you sir are relentless. My test equipment will arrive while I am on vacation. So I probably won't be working on this before mid-January. And I started having ideas of overhauling/refreshing my setup a bit, which I've had for 10 years or more.

Below are the latest configs. And here's a weird thing. When I put the VLAN trunk on the WAN port, I can't reach the Archer C7 from the AC68U. When using a LAN port - it's reachable. The C7 to AC68U direction doesn't work either way.
I also need to write down what changes I make, because I am getting lost...

tjk

---

# Archer C7 /etc/config/network
config interface 'loopback'
	option ifname 'lo'
	option proto 'static'
	option ipaddr '127.0.0.1'
	option netmask '255.0.0.0'

config globals 'globals'
	option ula_prefix 'fd05:4b43:1238::/48'

config interface 'lan'
	option type 'bridge'
	option ifname 'eth1.1'
	option proto 'static'
	option netmask '255.255.255.0'
	option ip6assign '60'
	option gateway '192.168.111.1'
	option ipaddr '192.168.111.21'

config switch
	option name 'switch0'
	option reset '1'
	option enable_vlan '1'

config switch_vlan
	option device 'switch0'
	option vlan '1'
	option vid '1'
	option ports '0t 2 3 5t'

config switch_vlan
	option device 'switch0'
	option vlan '2'
	option ports '6t 4 5t'
	option vid '3'

# ASUS RT-AC68U /etc/config/network

config interface 'loopback'
	option device 'lo'
	option proto 'static'
	option ipaddr '127.0.0.1'
	option netmask '255.0.0.0'

config globals 'globals'
	option ula_prefix 'fd8d:7074:7a33::/48'
	option packet_steering '1'

config device
	option name 'br-lan'
	option type 'bridge'
	list ports 'lan1'
	list ports 'lan2'
	list ports 'lan3'
	list ports 'lan4'
	option ipv6 '0'

config interface 'lan'
	option device 'br-lan.1'
	option proto 'static'
	option ipaddr '192.168.111.1'
	option netmask '255.255.255.0'

config device
	option name 'wan'
	option macaddr '******:99'
	option ipv6 '0'

config interface 'wan'
	option device 'wan'
	option proto 'dhcp'
	option peerdns '0'
	list dns '192.168.222.12'

config interface 'wan6'
	option device 'wan'
	option proto 'dhcpv6'
	option auto '0'
	option reqaddress 'try'
	option reqprefix 'auto'

config bridge-vlan
	option device 'br-lan'
	option vlan '1'
	list ports 'lan1:t'
	list ports 'lan2:u*'

config bridge-vlan
	option device 'br-lan'
	option vlan '3'
	list ports 'lan1:t'
	list ports 'lan3:u*'
	list ports 'lan4:u*'

config interface 'glan'
	option proto 'static'
	option device 'br-lan.3'
	option ipaddr '192.168.222.1'
	option netmask '255.255.255.0'

[psherman]

The C7 config looks wrong... the ifname syntax and the type bridge have been deprecated for a while. How did these end up here?

@tjkolev

config interface 'lan'
	option type 'bridge'
	option ifname 'eth1.1'
	option proto 'static'
	option netmask '255.255.255.0'
	option ip6assign '60'
	option gateway '192.168.111.1'
	option ipaddr '192.168.111.21'

In the default config for the C7 that you showed here, things looked correct. The subsequent changes I recommended wouldn't have caused the syntax we see here.

Can you double check the version of OpenWrt on that device?

ubus call system board

[tjkolev]

@psherman

How did these end up here?

I downgraded the C7 to OpenWRT 19... Then got side tracked.... The C7 is now back on version 23.

My new router arrived - Belkin RT3200. Flashed OpenWRT 23 on it. Did a quick test on the VLAN trunk with the C7 - vlan ids 1 and 3. Works like a charm.

I am giving up on figuring out the cause for why the AC68U didn't work. Thank you very much for you help @psherman - I truly appreciate it.

Happy holidays!
tjk

[psherman]

Glad your setup is now working!

Happy holidays!

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Thanks!